Improvement in stopping-mechanisms for looms



OOWNGIL'L. STOPPING MECHANISM FOR LOOMS'.

-No 110,208., Patented Dec. 20, 1870'.

' L 1P. 1 I Z1,

fitment mitt-ire.

JAMES OOWNGILL, OF PHILADELPHIA, PENNSYLVANIA.

Letters Patent No. 110,208, dated December 20, 1870.

IMPROVEMENT IN STo'PPING- 'EcI-IANISMS FOR LOOMS.

The Schedule referred to in these Letters Patent and making part of the same.

I, J .ums COwXGILL, of the city of Philadelphia,

in the State of.Pe1n1sylvania, have invented certain Improvements in the Stop Motion of Looms, of which the following is a specification. Nature (lllll Objects of the In ventionf hIy invention relates to the combination of a sIiil ing. bar with the brake and frog of a 10on1, iin such a manner that, who-neither of the picker-straps break,

'itspicker-stafi' will come in contact with vand move the slide, so as to cause the latter to move the brake and belt-shifter, and thus stop the loom; the objectv of my invention being to' prevent what weavers call a smash up, or damage to the loom, if the shuttle fails to pass out of the shed when the picker-strap breaks.

Description of the Accompanying Drawing.

- Figure 1 is a front view of the frame of a loom em- 'bodying my invention.

the frame of the loom by means of two bearings, consisting of slots u a in the slide, and headed bolts, 1) b in the frame, so that the, said slide A can be freely moved longitudinally rightand left, in horizontal di- "rctions, betwccnthe two piclier-stafisb" b.

Proj ecting from the lower ed go of the slide A is an arm,-

a", near the outer end of which there is a /\-notch, a into and out of which the upright; arm 0' of the usual brake O is moved alternately by the slide A when the latter is putin motion, as will be explained.

spring ba-r E of the hand-shifter, out of'its detent in the plate 4, and thus shifts the driving-band of the loom from the usualt-ight pulley to the loose one, not

' shown.

.The picker-staffs I) b vibrate horizontally, and, by

j meansof their respectivestraps, move the pickers and the shuttle (not shown) right and'left in the usual -'0ll. lill0\\'ll manner.

" \Vheh'th'eloom is working, themiddle of the slots 100f the slide A rest upon the supporting-bolts b b,

and they said slide A remains stationaryg with its'ends just; clearing the inward strokes of the picker-staffs; but, if either of the picker-straps 5 5 break, its pickerstafif strikes that end of the slide'A, drives 'it forward,

so as to displace the arm 0' from the notch a to the edge of the arm a", (see fig. 3,) and thus bringing the frog D and brake G into-action, shift the band to the loose pulley (not shown) and stop the motion of the loom. Y

The devices are very simple of construction, can be applied to any 100111 of the class, and are entirely efi'ective for the purpose.

7 Claim.

1 claim as my invention- The combination of the sliding bar A with the brake G and frog D of aloom, so as-to be operated by the picker-stalls I)" b, substantially as and for the purpose hcreiubefore set forth.

JAMES COWNGILL.

- Witnesses BENJ. Momson, Wu. H. Momson. 

